Design of protected cloud computing by Homomorphic Encryption

Abstract

The idea of homomorphic encryption is to make sure data confidentiality in messages, storage or in utilize by processes with methodssimilar to conventional cryptography, but with additionalabilities of computing over encrypted data, searching an encrypted data, etc. Homomorphism is a property by which a problem in one algebraic system can be converted to a problem in another algebraic system, be solved and the solution later can also be converted back successfully. Therefore, homomorphism composes secure delegation of computation to a third party feasible. Various conventional encryption schemes have either multiplicative or additive homomorphic property and are presently in use for personal applications. So far, a Fully Homomorphic Encryption (FHE) scheme which could perform any arbitrary computation over encrypted data appeared in 2009 as Gentry’s work. In this paper, we suggest a multi-cloud architecture of M distributed servers to repartition the data and to almostpermit achieving an FHE